Harman US

Basin, WY Weather & Growing Conditions

This Afternoon
67°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. High near 67, with temperatures falling to around 64 in the afternoon. Northwest wind 13 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 67°F Chance Showers And Thunderstorms 13 to 21 mph NW 42%
Tonight 44°F Showers And Thunderstorms Likely 14 to 23 mph NW 55%
Sunday 65°F Chance Rain Showers then Mostly Cloudy 8 to 12 mph NW 38%
Sunday Night 43°F Mostly Cloudy 1 to 7 mph W 1%
Monday 71°F Mostly Sunny 1 to 5 mph SSE 0%
Monday Night 43°F Mostly Clear 3 mph SE 0%
Tuesday 78°F Sunny 1 to 6 mph SE 0%
Tuesday Night 48°F Partly Cloudy then Slight Chance Showers And Thunderstorms 3 mph SE 21%
Wednesday 78°F Mostly Sunny 5 mph SE 11%
Wednesday Night 47°F Mostly Clear 5 mph SE 3%
Thursday 81°F Sunny 2 to 8 mph SSE 1%
Thursday Night 48°F Mostly Clear 7 mph SSE 1%
Friday 82°F Mostly Sunny 5 to 10 mph SSE 1%
Friday Night 49°F Partly Cloudy 8 mph SSE 4%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Basin, WY

Last spring frost
Apr 28
First fall frost
Oct 10
Growing season
164 days
Hardiness zone
4b

Explore more for Basin, WY: full frost dates · planting calendar · Wyoming frost dates

Climate data from the nearest NOAA station, Basin, Wy (6.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.